1. Stabilizing Interface between Li2S–P2S5 Glass-Ceramic Electrolyte and Ether Electrolyte by Tuning Solvation Reaction
- Author
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Bo Fan, Wenzhi Li, Zhongkuan Luo, Xianghua Zhang, Hongli Ma, Ping Fan, Bai Xue, Shenzhen University [Shenzhen], Institut des Sciences Chimiques de Rennes (ISCR), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), The work is financially supported by the National Natural Science Foundation of China (NFSC) project (No. 51702216), the Natural Science Foundation of Guangdong Province (No. 2021A1515011725), the Stable Support Plan for Shenzhen Higher Education Institutions (No. 20200811211215001), the Shenzhen Science and Technology Foundation (JCYJ20210324095808023), and the State Key Laboratory of Silicon Materials Visiting Scholar Fund (SKL2020-10)., Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
hybrid electrolytes ,02 engineering and technology ,lithium−sulfur batteries ,010402 general chemistry ,021001 nanoscience & nanotechnology ,sulfide solid electrolyte ,01 natural sciences ,7. Clean energy ,0104 chemical sciences ,Li2S−P2S5 ,interface ,[CHIM]Chemical Sciences ,General Materials Science ,0210 nano-technology - Abstract
International audience; Using solid-liquid hybrid electrolytes is an effective strategy to overcome the large solid/solid interfacial resistance in all-solid-state batteries and the safety problems in liquid batteries. The properties of the solid/liquid electrolyte interphase layer (SLEI) are essential for the performance of solid-liquid hybrid electrolytes. In this work, the solvation reactions between Li(2)S-P(2)S(5) glass-ceramic solid electrolytes (SEs) and ether electrolytes were studied, and their influence on the SLEI was examined. Although 1,2-dimethoxyethane (DME) reacted with the Li(2)S-P(2)S(5) glass-ceramic SE to form a dense SLEI, 1,3-dioxolane (DOL) severely corroded the SE, resulting in a loose SLEI. Consequently, a stable SLEI formed with DME. Using a combination of the Li(2)S-P(2)S(5) glass-ceramic SE and the DME-based liquid electrolyte (LE), stable lithium plating/stripping cycles over 1000 h and a hybrid Li-S battery that retained a specific capacity of 730 mAh g(-1) after 200 cycles were demonstrated. The knowledge of the reactions between the sulfide electrolytes and the organic LEs is instructive for the design of stable sulfide-liquid hybrid electrolytes for advanced batteries.
- Published
- 2021